Agent skill

Econ Game Theory

by asgard-ai-platform in asgard-ai-platform/skills

Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions.

MITAuto-check passed

Install Econ Game Theory

skills CLI
$ npx skills add asgard-ai-platform/skills --skill econ-game-theory -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install asgard-ai-platform/skills econ-game-theory --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/asgard-ai-platform/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/econ-game-theory .claude/skills/econ-game-theory && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
econ-game-theory
GitHub stars
242
Token cost
~1.1k tokens
SKILL.md length
388 words
Files
4 (incl. references)
Skills in repo
207
Repo updated
First seen
Licence
MIT

At a glance

Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions.

  • Works in 7 steps: Identify players and their available… → Build the payoff matrix (simultaneous)… → Check for dominant strategies per player → …
  • The user needs to model competitive decisions
  • SKILL.md covers Overview, Framework, Output Format and Examples, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Econ Game Theory is an agent skill from asgard-ai-platform/skills. Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions. Use this skill when the user needs to model competitive decisions, predict rival behavior, design incentive mechanisms, or evaluate cooperation vs competition scenarios — even if they say 'what will our competitor do', 'should we cooperate or compete', or 'how do we set up the right incentives'.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `examples/sample_scenario.md`, `references/mechanism-design.md` and `references/repeated-games.md`).

The repository describes itself as: 301 open-source coding agent skills across 22 domains — methodology, judgment & gotchas packaged as Claude Agent Skills for the Asgard AI Platform. The licence is MIT.

When your agent uses it

  • The user needs to model competitive decisions
  • Predict rival behavior
  • Design incentive mechanisms
  • Evaluate cooperation vs competition scenarios — even if they say what will our competitor do

Example prompts

  • “what will our competitor do”
  • “should we cooperate or compete”
  • “how do we set up the right incentives”
  • “/econ-game-theory”

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Identify players and their available strategies
  2. Build the payoff matrix (simultaneous) or game tree (sequential)
  3. Check for dominant strategies per player
  4. Find Nash Equilibrium — where best responses intersect
  5. For sequential games: apply backward induction from terminal nodes
  6. Evaluate efficiency — is the NE Pareto optimal? If not, flag cooperation opportunity
  7. The resulting path is the Subgame Perfect Equilibrium

What it can do on your machine

Read from SKILL.md and the folder at commit 4e7f4f8. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Econ Game Theory loads about 1.1k tokens when it runs, and up to ~6.6k if it reads all its reference files. Until then it costs about 114 tokens; SKILL.md has 388 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~114
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~6.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from asgard-ai-platform/skills at commit 4e7f4f8, republished under its MIT licence (© asgard-ai-platform). 388 words, ~1,122 tokens.

Download SKILL.mdSave it as .claude/skills/econ-game-theory/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
econ-game-theory
description
Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions. Use this skill when the user needs to model competitive decisions, predict rival behavior, design incentive mechanisms, or evaluate cooperation vs competition scenarios — even if they say 'what will our competitor do', 'should we cooperate or compete', or 'how do we set up the right incentives'.
metadata.category
WP-17 經濟學院
metadata.tags
economics, game-theory, strategy

Game Theory Basics

Overview

Game theory models strategic interactions where each player's outcome depends on others' choices. It provides tools to predict behavior, identify stable outcomes (equilibria), and design mechanisms that align incentives.

Framework

IRON LAW: Define Players, Strategies, and Payoffs BEFORE Analyzing

Every game requires three elements explicitly defined:
1. Players — who are the decision-makers?
2. Strategies — what choices does each player have?
3. Payoffs — what does each player get for each combination of choices?

Analyzing a "game" without a payoff matrix is just storytelling.
Analysis Steps
  1. Identify players and their available strategies
  2. Build the payoff matrix (simultaneous) or game tree (sequential)
  3. Check for dominant strategies per player
  4. Find Nash Equilibrium — where best responses intersect
  5. For sequential games: apply backward induction from terminal nodes
  6. Evaluate efficiency — is the NE Pareto optimal? If not, flag cooperation opportunity
  7. The resulting path is the Subgame Perfect Equilibrium

Output Format

markdown
# Game Theory Analysis: {Situation}

## Game Setup
- Players: {list}
- Strategies: Player 1: {A, B}, Player 2: {X, Y}
- Type: Simultaneous / Sequential

## Payoff Matrix (simultaneous) or Game Tree (sequential)

|  | Player 2: X | Player 2: Y |
|---|---|---|
| Player 1: A | (a1, a2) | (b1, b2) |
| Player 1: B | (c1, c2) | (d1, d2) |

## Analysis
- Dominant strategies: {if any}
- Nash Equilibrium: {strategy combination, payoffs}
- Pareto optimal? {yes/no — if no, explain the cooperation opportunity}

## Strategic Implications
{What should each player do? What mechanism could improve outcomes?}

Examples

Correct Application

Scenario: Two bubble tea chains considering price cut

Chain B: Hold PriceChain B: Cut Price
Chain A: Hold Price(80, 80)(40, 100)
Chain A: Cut Price(100, 40)(60, 60)
  • Both have dominant strategy: Cut Price (100 > 80, 60 > 40)
  • Nash Equilibrium: (Cut, Cut) = (60, 60) — a Prisoner's Dilemma ✓
  • Both would prefer (Hold, Hold) = (80, 80) but can't sustain it without a binding agreement
  • Implication: Price wars are the rational outcome. To escape, need repeated interaction (reputation), contracts, or differentiation that makes price less relevant.
Incorrect Application
  • "Our competitor will probably cooperate because it's better for everyone" → In a one-shot Prisoner's Dilemma, rational players defect. Cooperation requires repeated games or enforcement. Violates the model's prediction.
Show full SKILL.md (166 more words)Show less

Gotchas

  • Nash Equilibrium ≠ best outcome: NE is stable, not optimal. The Prisoner's Dilemma NE is worse for both players than cooperation.
  • Multiple equilibria: Many games have multiple NE. Additional criteria (focal points, risk dominance, Pareto dominance) help select among them.
  • Payoff estimation is the hard part: The matrix is easy once payoffs are known. Estimating realistic payoffs requires market research and financial modeling.
  • Repeated games change everything: In one-shot games, defection dominates. In repeated games, tit-for-tat and reputation effects enable cooperation.
  • Information matters: Games with incomplete information (you don't know opponent's payoffs) or imperfect information (you don't see opponent's moves) require Bayesian analysis.
  • Mixed-strategy NE is the default, not the exception: When no pure-strategy NE exists (e.g., matching pennies), agents often report "no equilibrium found" instead of computing the mixed strategy. Every finite game has at least one NE — if you can't find a pure one, solve for the mixing probabilities.

References

  • For repeated games and folk theorem, see references/repeated-games.md
  • For mechanism design basics, see references/mechanism-design.md

© asgard-ai-platform, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in econ-game-theory of asgard-ai-platform/skills.

  • SKILL.md
  • examples/sample_scenario.md
  • references/mechanism-design.md
  • references/repeated-games.md

Open the folder on GitHubat commit 4e7f4f8

Compare with similar skills

Econ Game Theory next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Econ Game Theory compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Econ Game Theory this skillasgard-ai-platform/skills242—~1.1kAutomated safety check: PassMIT
JavaScript Concept Page Workflowleonardomso/33-js-concepts67k—~3.9kAutomated safety check: PassMIT
JavaScript Concept Page Writerleonardomso/33-js-concepts67k—~14kAutomated safety check: PassMIT
Concept Synthesisgarrytan/gbrain31k—~5.5kAutomated safety check: PassMIT
Basicbergside/awesome-design-skills3.1k1 repos~969Automated safety check: PassMIT
Makepad Basicssickn33/agentic-awesome-skills47k2 repos~1.2kAutomated safety check: PassMIT

Similar skills

  • JavaScript Concept Page Workflow

    leonardomso/33-js-concepts

    Orchestrates five skills to produce a complete JavaScript concept documentation page, from resource curation through writing, tests, fact-checking and SEO.

    67k GitHub stars~3.9k tokensUpdated 1 mo ago
    Writing & ContentAuto-check passed
  • JavaScript Concept Page Writer

    leonardomso/33-js-concepts

    Writes or reviews documentation pages for the 33 JavaScript Concepts project, following its structure, a beginner-friendly voice and rules against AI-sounding language.

    67k GitHub stars~14k tokensUpdated 1 mo ago
    Writing & ContentAuto-check passed
  • Concept Synthesis

    garrytan/gbrain

    Deduplicate and synthesize raw concept stubs into a tiered intellectual map (T1 Canon to T4 Riff), tracing idea evolution across sources over time.

    31k GitHub stars~5.5k tokensUpdated yesterday
    Marketing & SEOAuto-check passed
  • Basic

    bergside/awesome-design-skills

    Print-inspired visual language for books, magazines, and reports with editorial grids and expressive typography.

    3.1k GitHub starsUsed in 1 repo~969 tokens
    Frontend & DesignAuto-check passed
  • Makepad Basics

    sickn33/agentic-awesome-skills

    CRITICAL: Use for Makepad getting started and app structure.

    47k GitHub starsUsed in 2 repos~1.2k tokens
    Auto-check passed
  • Integration Theory

    parcadei/Continuous-Claude-v3

    Problem-solving strategies for integration theory in measure theory

    3.9k GitHub starsUsed in 1 repo~929 tokens
    Research & ScienceAuto-check: notes

More from asgard-ai-platform/skills

All 207 skills in this repo
  • Algo Ecom Bm25

    asgard-ai-platform/skills

    Implement BM25 ranking function for e-commerce product search relevance scoring.

    242 GitHub stars~1.4k tokensUpdated 4 mo ago
    Auto-check passed
  • Algo Mfg Cpk

    asgard-ai-platform/skills

    Calculate Cpk process capability index to assess whether a process meets specification requirements.

    242 GitHub stars~1.1k tokensUpdated 4 mo ago
    Auto-check passed
  • Algo Price Elasticity

    asgard-ai-platform/skills

    Calculate price elasticity of demand to quantify how price changes affect sales volume.

    242 GitHub stars~1.1k tokensUpdated 4 mo ago
    Auto-check passed
  • Algo Rank Bayesian

    asgard-ai-platform/skills

    Apply Bayesian averaging to rank items by combining observed ratings with prior expectations.

    242 GitHub stars~1.1k tokensUpdated 4 mo ago
    Auto-check passed
  • Algo Rank Elo

    asgard-ai-platform/skills

    Implement Elo rating system to rank items or players from pairwise comparison outcomes.

    242 GitHub stars~1.1k tokensUpdated 4 mo ago
    Auto-check passed
  • Algo Rank Wilson

    asgard-ai-platform/skills

    Calculate Wilson Score confidence intervals for ranking items by positive proportion with sample size correction.

    242 GitHub stars~1.1k tokensUpdated 4 mo ago
    Auto-check passed

Questions about Econ Game Theory

What does Econ Game Theory do?

Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions. Econ Game Theory is an agent skill from asgard-ai-platform/skills. Apply basic game theory concepts including Nash equilibrium, dominant strategies, and the Prisoner's Dilemma to analyze strategic interactions.

When should I use Econ Game Theory?

Econ Game Theory fits situations like: the user needs to model competitive decisions; predict rival behavior; design incentive mechanisms; evaluate cooperation vs competition scenarios — even if they say what will our competitor do.

How do I install Econ Game Theory in Claude Code?

Run `npx skills add asgard-ai-platform/skills --skill econ-game-theory -a claude-code`. Or copy the skill folder (econ-game-theory in asgard-ai-platform/skills) into .claude/skills/econ-game-theory in your project. Claude Code loads it when a task matches its description.

How do I install Econ Game Theory in Codex?

Run `npx skills add asgard-ai-platform/skills --skill econ-game-theory -a codex`. Or copy the skill folder (econ-game-theory in asgard-ai-platform/skills) into .agents/skills/econ-game-theory in your project. Codex loads it when a task matches its description.

Can I use Econ Game Theory in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add asgard-ai-platform/skills --skill econ-game-theory -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/econ-game-theory, .gemini/skills/econ-game-theory, .github/skills/econ-game-theory and .opencode/skills/econ-game-theory in your project.

What does Econ Game Theory need to run?

SKILL.md names no scripts, command-line tools or credentials: Econ Game Theory is instructions for the agent only.

Does Econ Game Theory access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Econ Game Theory safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Econ Game Theory use?

Econ Game Theory is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Econ Game Theory use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 5.4k tokens, read only when the agent opens those files.

What are the alternatives to Econ Game Theory?

Skills that share tags, products or a category with Econ Game Theory: JavaScript Concept Page Workflow (leonardomso/33-js-concepts, 67k stars), JavaScript Concept Page Writer (leonardomso/33-js-concepts, 67k stars), Concept Synthesis (garrytan/gbrain, 31k stars) and Basic (bergside/awesome-design-skills, 3.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Econ Game Theory?

asgard-ai-platform (a GitHub organization) maintains it in asgard-ai-platform/skills, which has 242 GitHub stars. The repository holds 207 skills in this directory. The repository was last updated on June 6, 2026.

Source: asgard-ai-platform/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.